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2021-12-02 10:09:51|已瀏覽:237次

要成功應(yīng)對(duì)GMAT數(shù)學(xué)中的數(shù)據(jù)充分性問題,需要貫徹如下的一些策略和技巧:
1. GMAT數(shù)據(jù)充分性問題的說明相當(dāng)復(fù)雜。做真題的時(shí)候,在著手解題之前,花些時(shí)間冷靜的學(xué)習(xí)一下數(shù)據(jù)充分性問題的說明,是很有必要的。熟讀、理解整個(gè)說明,熟記下面這五個(gè)選項(xiàng),這五個(gè)選項(xiàng)對(duì)于每一道數(shù)據(jù)充分性問題都是一樣的?荚嚂r(shí),千萬不要再花時(shí)間看說明了。A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked;2. 搞清楚,你的目標(biāo)是判定是否有足夠的信息來回答問題。不要花時(shí)間進(jìn)行任何運(yùn)算。GMAT數(shù)據(jù)充分性問題主要是考查數(shù)學(xué)概念,而不是數(shù)字運(yùn)算的能力(那是標(biāo)準(zhǔn)多項(xiàng)選擇的任務(wù))。如果你發(fā)現(xiàn)自己在進(jìn)行大量的筆頭運(yùn)算,那你一定走錯(cuò)了方向。
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked;
C. BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked, but NEITHER statement ALONE is sufficient;
D. EACH statement ALONE is sufficient to answer the question asked;
E. Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed.
(1) ABC is the base word.這道例題中,一看第一項(xiàng)就沒有說明生成新詞的規(guī)則,因此A可以排除,D可以排除。剩下的工作就只有結(jié)合兩條說明項(xiàng),檢查選項(xiàng)C的正誤了。
(2) If C immediately follows B, then C can be moved to the front of the code word to generate another word.
(1) 3x = 24
(2) 4x < 36
很明顯,第一條說明項(xiàng)就可以回答答題干中的問題,C和E就都被排除了。剩下的就看說明項(xiàng)(2)能不能確定x的數(shù)值了。
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